Draft-rigging.



3 noauto/c 3 SHEETS-SHEET l'.

S. G. MCALISTER.

DRAFT HIGGINS.

APPLlcmoN min MAR. 20,1916.

S. G. McALlSTER.

DRAFT RIGGING.

APPLICATION min mn. 2o. 191e.

Patented J un. 30, 1917.

3 SHEETS--SHEET 2.

3 SHEETS-SHEET 3- 'Patented Jan. 30, 1917.

S. G. MCALISTER.

DRAFT RIGGING.

APPLICATION msu ma. 20. Isls.

N71/huma lUNITED STATES PATENT olniron.v

STUART e. McALrsT'nn, or WASHINGTON, Drs'rmcrbr COLUMBIA, Assrenon 'ro 'run r. H. sri/[meren ooMPANY, or ROCHESTER, new YORK, A oonPoRAfrxoN or MAINE.V

DRAFT-mimmo.

i Patented Jan. 30, 1917.

Appunti@ mee-March zo, 191e. serial No. 35,371.`

Be it known `that I, S'ron'r G. MoAL1sfren, n citizen of the Unitegl-Stetes, residing at "Washington, inthe District' of Columbia, have invented certain newend Vuseful Im- {irovements in Draft-Rigging; and I; .do

lb all whom it muy concern:

. iereby declare the following'fto be ef full,

clear, und exact description oflthe irn'f'enjr i tion, such es will enable othersJ skilledin the j Iceland 'usci supporting ineens for the cushioning mechcrt 4towhich it apperteins toff the same. Y

The invention. relntesto draft rigging for `reilmiy cnrs, and incre piirticulerly to that elnssof draft rigfgfi-ngfi`-vvhich the Ineens tor limiting-tlie-renrwur movement ofthe cushioning meo'henlsnris formelles e centifnl stop, 'and injw iehthe for com 4 `neoting the'coupler tothe cushioning mechlenisin is 'horzontlly Verrangedf l 1,11," To this end the main' featureof my inlgentiom gener'lly stet'edfconsstsffir provid- "111g copemtng' ineens on the cou lerconf r ne'ctirfg nieu-'ns ndfnfthe' cer un erfremex;

. levent the, disc-on;-4 ncction from the cer offhonplen connectwhich are adapted to ing means, should, the'cushioningmechm nism break, feilor bedisp'leced from its.

positionne therebyineintein the coupler in -coperative relation to the cer underframe.

The cooperating nieans on the lcoupler f wonnecting mee-ns. and on the 'cer under. frame are prefereblyi'so located end. er' ranged with reference to eech other' that they` preyent movement of the coupler-.con-

necting meansV beyond the' normal p rjedetermined .emouhn and thereby serve tol transmit the load` `beyond thecepecity of the cushioning mechanism to the cer under-4 fremejdirectly through the coupler connectfing means.

There are other Afeatures of the invention i *os will appear from e more detailed descrip- 'constructjom illustratedxin Fi theports being shown seetlon. Figs. 3 .ind It are detail cross-sections, taken, respeolion 'of the Vinwention teken in connection with the accompanying'drawings-ohosen for thepurpose.of.illustration.j` Y.

Throughout. the.-- specification-end drewings like numerals designate like parte.' Figure 1 is a. side elevation of a draft rigging' and .e portion. of the cacunderfrexne,

,one of thofdr'uft sills mld theV adjacent p or-v "/tion. of ,the coupler connecting meenelbeilg.

tively, on lines 4end 11e-4 of Fig. 2 look.

.in g inthe direction indicated bythe arrows. Fig. 51s an elevation, showmg one ofthe coupler connectingmeens, illustretedin Fig.4 1, in normal position with reference to the adjacentsill, portions.. ofthe followers und coupler key .being in section. F ig. 6 is e .view similar to Fig. 2. showing, however, a. slightly modified construction.

Fig. 7 is 'e cross-sect1on showing a. preferred form of anisrn. Fig. 8 is e. View similar to Fig.' 5, showing the form of coupler connecting means illustrated in Fig.- 6, and Fig. 9 is e.

view similar to Figs. 2 and 6, but showing a. further modification.

Referring to the form illustrated in Figsf. 1 to 5 inclusive, thedreftsillsere desg rearwardly Aextending members which ere h udalpted' to beslidably connected to the cou- `ler 2 by means of the' ltransversely extendlng'coupler key 4, `which `pelsses through the slot 5 'in the coupler 2, and Vthrfmgh the elongated slots 6, 6 and 7, v7 Vin thevmernbers Y3 and draft sills 1, respectively. z

The numeral 8 designates the -front folv lower, which may for convenience be formed as en H fsheped member, having-upper and lower.'luterellyv projecting ears or lugs 9,' 9

and 10, 10, respectively, thereby providing onlopposite sides of the follower slots or ogenings 11, 11, adapted each to receive oneV O sol the members 3; The reer follower 12 is also preferably provided with upper and lower laterally rojecting'eers or lugs 13, :13

and 14, 14, en the members. 3, 3 are also adapted' to' extend between the' respectlve 'pairs of4 lugs 13, 1,4;v "The reel' follower 12 mey,fo1"V convenience', be provided, interniediete'ea'chpair of lugs 13 and I4,`vv1,th a.

leterclly pnb'jeoting lug 15 v'which is' cdept'ed toenter .nnelongetedslt 16 in the adjacent member; i

Toholfd' the; front ,follower from' movel'mentunnder draft strains, 'vertically weed Stops-17,.. .17 may beprovddvnh l? @Bk- 'fp letesvl which are adeptedto be connected to' 4thevertical faces ofthe .draft sills-1,1.4 The forward ends. of the members 3- are each adapted to 'ess'between' the shoulders 1 7, 17 of t e adjacent. cheek-p ete Each cheek-plete s'preferably provided to.

nef

the rear ol' the :Jop shoulders -17 and intermediate the same, willi an outwardly extending lugl or projection l2), lhe members 3,- El being each provided with a slot i2() to receive the projection lil ol' the i-orrespomlin r cheekplate. 'l`he rca r follower' 1:2 norma ly-con tarts with the fora-ard face .22 of a centrally arranged stop'and tie casting 21; The stop casting 2l "el'crably comprises a'hori- .zontally disposed web portion 23, reinforced lugs 125 and il provided on the rear follower,

and each of the said members isfnrther provided with an intnrned shoulder 2.) at the .rear end thereof.4 said shoulders Zilbeing ldapted to contact with the' outwardlyextendine,` shonldcrs Il() lformed on the vertical web 7 olfl1lie'stol' casting-2l. i

The numeral ill designates the cushioning mechanism which may be of any desired form,'a,well known type of combined spring and friction eoshi'onimer f'inechanism being shown by 'a y of example.

'lhe operation of his 'form of draft rig ging is as follows: Under yboiling,4 mov ment thecoupler' movers rearwardly indel vndent of the eonnectiifg means compressing the cushioningr mechanism between the front follower S -and the rear ,follower 12the latter, of course, being held from rearward n'iovement'by the rear stop 21. ward or draft movement the coupler, owing to itskey 4, pulls the coupler connecting means forwardly and `owing to' the engagement ofthe coupler connecting means with the rea-r `follower 12 the cushioning mechanism.. is compressed against the forward follower S which then abuts against the stops ol the chtaik-plates 1.8. .The projections 2. and the 'emls of the slots; 2() of the cdupler connection means and the forward ends of the-slots 7 1n the sills are 'so positioned `with'-r iference to sto-ps` 30 and -191/ 'scrilredftt-i the lindt-rframe and the-forward formed as a pair of separate members 5l-V whirh are each provided at their. inner ends with mturned .lugs 29 adapted to engage,

under ejvtli-.me forward movement, eo-acting shoulders 30 on the stop casting 2 1. Each Under for- 0l the members El is l'nrther provided with c anA lnwardly extenrhnga-rm l adapt-ed .,i

engage the forward face ol' the stop il and.' the reariface ol the rear lollmvcr lila. ln

order to securely brace arr-l strengthen the arms 31, a reinforciiml web or llange 353 is provided, and the stops $0 are each provided with an opening, 33 to receive the flange 32.

The clieeleplates 1S are cach provided with 'forward spared stop shoulders 17 adapted to engage and prevent -forward movementof the front follower S". and each cheek-plate is further provided with spaced limiting stop shoulders- 17" adapted to limit the rearward movement of the, front follower in boiling. .\s-the followers` S and 19 are rectangular and he vwhollyY between the vertical planes of the interior laces of the arms of the coupler connecting'1neans,' supportmg .plates such as 31 are employed' to maintain '.the follower-sin position. These plates extend'transversely of lthe dra ft rigging and are connected to the lower llauges ofthe draft sills l. lnl this l'orni of mochanism under boiling the inal loadvis transmitted to the sills at five places. namely, .by

the key 4 to the inner ends of the slots 7, by the front follower S to the limiting stops 1 7", and by the rear follower to the rear sto'p 21, while under draft` the load beyond the normalcaljiacity of the cushioning Y merhanism is ta-nsmitted at 'six different places `to the sills by' the coupler connecting means 3 through the engagement of the shoulders 29 and-30, by the front follower to the v ion'edas a horizontal yoke 35 provided with rear connected members 3e adapted lo engage the forward face of a stop-memlwr 2lb.

Rearwardly of member 36 and preferably in line with the arms of the yoke, there are provided rearwardly extending,r members e7 having inturned ends, to provide forwardly' facing shouldersl .lllf adapted nnder extreme forward movement` of the. yoke 35 to'engage the cooperating),r stops 30"` on the stop casting 21".

In place of eheeklplates provided with .vertical stop shoulders such as are `shown in the other ligures, I employ a key conne-etal follower, such as is indicated at S", and-t0 strengthen the sills 1 to compensate for the openings formed therein to receive the ends 4, there are provided reinforcing meml ers .l7h each havingslots 7" and' 7 adapted -tov 1 e,f,5ister.v` respmilively,with the s'lots 7 anl 7? provided in the sills 1'. Int-his'form olf -lhe device, whenever either the boiling-- Orl draft strains exceedI the capacity of the draft gear, the keys 1i-and 4; come, into cons/,130

l5, number of points.

tact with the ends of the slots in the sills of excessive draft strains to the device, the inturned shoulders 29 of the rear end of the yoke 35 engage `the. coacting stops 30 on the stop 2l", so that draft strains beyond the normal capacity of the gear are directly transmitted by the yoke to the car under- In all bufiing operations therear the bufling force beingtransmitted to the latter through the rear end of the yoke. It will thus be seen that all strains beyond the capacity of the cushioning mechanism are distributed to the car under-frame at a large To support the cushioning mechanism and the coupler connecting means a speclal form of supporting plate 38 is preferably emn ployed. This plate, shown clearly in Fig. 7, is provided intermediate its ends with a curved portion 39 adapted `to receive the cushioning means, and intermediate the ends and adjacent the curved portion 39 there are provided further portions 40, 40 adapted to underlie and form a support for the arms, here indicated at 3, of the coupler connecting means. This form of supporting plate is illustrated in Figs. i., 2, 7 and 9. In Fig. 6, owing to the use of the limiting stops 17l and the supporting plates 34a flat supporting plate 38L is employed.

It is believed that the method by which the various forms of my device are assembled or disassembled will be obvious; it will be noted, however, `in the forms shown in Figs. l and 6 that it is necessary to first remove the cushioningmechanism and the followers after which the arms of the coupler connecting means may be swung inwardly so as to clear the stop shoulders and then lowered from ybetween the sills,4 while in the form illustrated in Fig. 9 it is only necessary to remove the two keys and the supporting plate 38 to permit the device to be taken down as a .u nit.

The many advantages of my invention it 1s believed will be apparent from the aforegoing description.

i' What I claim and desire to secure by Letters Patent is:

1. In a draft rigging, the combination with the draft sills, of a coupler, acushioning mechanism therefor, means extending rearwardly of the coupler and adapted to operatively connect the same to the said cushioning mechanism, and stationary means connected to the said sills and adapted to cooperate with the coupler connecting means to limit the forward movement of the same, the vsaid connecting means being capable of a lateral movement to permit the `removal thereof independently of the said limiting means. f

2. In a draft rigging, the combination "adapted to connect with the draft sills, of cushioning mecha nism, a stationary stop member connected to the said sills, a coupler, means for operatively connecting the said coupler and cushioning mechanism, thesaid stop heilig arranged rearwardly ofl the ciiishioning mechanism and being providedwith lateral projections adapted to coperate with the coupler connecting means to limit the foi'- ward movement of the same.

3. In a draft rigging, the combination with the draft sills, of a coupler, cushioning mechanism therefor, said cushioning mechanism'including a follower adapted to engage the coupler, means extending rearwardly of the coupler and adapted to operatively connect the sameto the cushioning l'necha-nism, and means rigidly connected to the sills, in rear of the said follower, said means being adapted to cop erate with the coupler connecting means to limit the forward movement of Vthe i. at the vertlcalsides of the said cushioning mechanism, and said stop member and means on said stop adapted to prevent forward movement of said coupler beyond a predetermined. amount.

5. In a draft rigging, the combination with spaced draft sills, of a stop rigidly connected thereto, and bridging the space therebetween, a coupler, a cushioning mechanism, horizontally arranged means extending rearwardly of the coupler and the coupler and cushioning means, the said stop extending rearwardly of the cushioning mechanism and being provided with laterally extending means adapted to engage the coupler connecting means to limit the forward movement thereof.

6. In a draft rigging, the combination with spaced draft sills, of a stoprigidly connected thereto, and bridging the space therebetween, a coupler, a cushioning mechanism, horizontally separable means extending rearwardly of the coupler and adapted to connect the coupler and cushioning means, the said stop extending rearwardly of the cushioning mechanism and being provided with means adapted t0 engage the coupler connecting means to limit the forward movement thereof.

7. In a draft-rigging. the combination' with the draft sills, of a combined stop and tie casting, said casting having a, centrally arranged forwardly projecting porshoulders on the said links adapted to engage the folloiver above and below the said slots.

9. In a draft rigging, the combination with they draft sills, of cheek-plates connected to the mljacent faces of the said sills7 each of said plates being provided with a pair .of spaced stop shoulders and a lugg.Y

said lug being located in a plane intermediate the said stops7 a coupler, cushioning mechanism, meansl connecting thecushioning mechanism and coupler said means including a.;pairI ol separable niembcrs arranged at the sides of said coupler7 each ot ,the 'said members being adapted to pass between the stop shoulders of the adjacent cheek-plate and provided with an opening adapted to receive the said lug.

l0. In a draft rigging, the combination 'with the draft sills, of cushioning mecha.-

nisin,v a stationary Stop member1 a coupler, means for operatively connecting said coupler and cushioning mechanism, said connecting means and said stop member having overlappirg portions, said@ portions being adapted to be engaged tovlimit the forward movement of said coupleii.

11. In a draft rigging, the combination with the draft sills, of a cushioning mechanism, a stationary stop member connected to the sills, a coupler, links extending aty the sides of said cushioning mechanism and adapted to operatively connect the same to the coupler, said links and said stop membe1',being provided with portions which are adapted to engage and limit the' forward movement of the said coupler, the said links being removable independently of the said stop member. v

lvl". In a draft rigging.; the (.omhination ivith the draft sills, a coupler, a` cushioning mechanism, said cushioning mechanism in eliiding a follower, cheek plates connected to the draft sills and each provided with an abutment against which the said follower may bear, a stationary stop member in rear of said cushioning mechanism, means for operatively connecting said cushioning mechanism and coupler, and cooperating means on said cheek plates, stop member and coupler connecting means to limit the for 'ard movement of said coupler beyond a predetermined point.

` 1n testimony whereof I aliix my signa* ture.

STUART G. MoALISTER. 

